• Title, Summary, Keyword: Monitoring

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Case Study on Technology and Regulation Improvement of Subway Maintenance Monitoring (지하철 유지관리 계측의 기술 및 제도 개선방안 연구)

  • 우종태;김홍석
    • Proceedings of the Korean Geotechical Society Conference
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    • pp.303-308
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    • 2000
  • By means of analyzing of monitoring technology and monitoring regulation based on maintenance monitoring system installed in subway tunnel section, it needs monitoring system, development of operating program, monitoring analyzing system and development of analysis method, establishment of maintenance monitoring standard specification, and performance of responsible monitoring supervision for applying to subway monitoring maintenance effectively in future. It requires specialized monitoring and legislation of monitoring subcontract, improvement of monitoring work contract method, establishment the standard payment of monitoring, and effective calibration and correction of monitoring system in the plan of improving monitoring regulation.

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Japan's experience on long-span bridges monitoring

  • Fujino, Yozo;Siringoringo, Dionysius M.;Abe, Masato
    • Structural Monitoring and Maintenance
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    • v.3 no.3
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    • pp.233-257
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    • 2016
  • This paper provides an overview on development of long-span bridges monitoring in Japan, with emphasis on monitoring strategies, types of monitoring system, and effective utilization of monitoring data. Because of severe environment condition such as high seismic activity and strong wind, bridge monitoring systems in Japan historically put more emphasis on structural evaluation against extreme events. Monitoring data were used to verify design assumptions, update specifications, and facilitate the efficacy of vibration control system. These were among the first objectives of instrumentation of long-span bridges in a framework of monitoring system in Japan. Later, monitoring systems were also utilized to evaluate structural performance under various environment and loading conditions, and to detect the possible structural deterioration over the age of structures. Monitoring systems are also employed as the basis of investigation and decision making for structural repair and/or retrofit when required. More recent interest has been to further extend application of monitoring to facilitate operation and maintenance, through rationalization of risk and asset management by utilizing monitoring data. The paper describes strategies and several examples of monitoring system and lessons learned from structural monitoring of long-span bridges in Japan.

Case Study on Analysis the Problem and Improvement of Subway Maintenance Monitoring (지하철 유지관리 계측의 문제점 분석 및 개선방안 연구)

  • 우종태;김홍석
    • Proceedings of the Korean Geotechical Society Conference
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    • pp.93-104
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    • 2000
  • By means of analyzing the problems in monitoring plan, design, installation, operation based on maintenance monitoring system installed in subway tunnel section, the methods of improvement were proposed for applying to subway monitoring maintenance effectively in future. The choice of the better monitoring system, the operating method of monitoring system, the confidence and continuity of maintenance monitoring, the performance of responsible monitoring supervision in the phase of the planning of monitoring and design were proposed. The problem and developed plan in the different monitoring systems, the calibration and correction of monitoring system, the analysis for the results and plan for maintenance in the phase of installation of monitoring system and operation were also proposed.

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Analysis for the Problem and Improvement of Maintenance Monitoring in Subway Tunnel (지하철 터널에서 유지관리계측의 문제점 분석 및 개선방안)

  • Woo, Jong-Tae;Kim, Jong-Soo;Lee, Song
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.5 no.4
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    • pp.161-167
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    • 2001
  • By means of analyzing the problems in monitoring plan, design, installation, operation based on maintenance monitoring system installed in subway tunnel section, the improved methods of were proposed for applying to subway monitoring maintenance effectively in the future. The choice of the better monitoring system, the operating method of monitoring system, the confidence and continuity of maintenance monitoring, the performance of responsible monitoring supervision in the phase of the planning of monitoring and design were proposed. The problem and developed plan in the different monitoring systems, the calibration and correction of monitoring system, the analysis for the results and plan for maintenance in the phase of installation of monitoring system and operation were also proposed.

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Diagrammatic Representation of Environmental Monitoring Data

  • Yoshioka, Takahito;Sekino, Tatsuki
    • Korean Journal of Ecology and Environment
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    • v.38 no.spc
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    • pp.76-83
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    • 2005
  • The marked increase in the number of environmental problems, combined with the increase in their intensity and spatial extent, has resulted in an ever-increasing need for constant monitoring. This is complicated by the occurrence of new and complicated environmental issues that often prevent a thorough understanding of the entire monitoring framework. In the present study, a diagrammatic method was developed to present the entire framework of a monitoring plan. The diagram was separated into three sections- "Problem Section", "Research Process and Data Section" and "Entities Section" - to clearly present the disparate relationships between monitoring objectives and the monitoring procedure. Notation of the diagrams was undertaken using Unified Modeling Language (UML). A hypothetical monitoring plan for an environmental problem was designed to assess usefulness of the diagrammatic method. The diagram was capable of reviewing and revising the monitoring plan and could be used to select a monitoring procedure according to the monitoring objectives of the plan. The results suggested that this diagrammatic method was effective for designing an appropriate monitoring plan for a given monitoring objective.

A Study of The Present State Analysis and Development Plans About Construction Monitoring and Monitoring Industry (건설 계측 및 계측업의 현황 분석과 발전 방안 연구)

  • Woo, Jong-Tae
    • Journal of The Korean Society of Civil Engineers
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    • v.30 no.2D
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    • pp.163-169
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    • 2010
  • Construction monitoring and monitoring industry have been rapidly developed with advance of IT industry and telecommunication. However institutional, legal supports that need to settle the construction monitoring are practically inadequate. So development plans that are reflected enquete results about the present state of construction monitoring are considered. A way that consider establishment Korea construction monitoring association and society, deal with relevant law appointing monitoring industry, consider enactment and revision of construction monitoring design standard and specifications, appoint practical construction monitoring educational institution, appoint an efficiency test specialty institution of monitoring equipment, consider the term of guarantee of monitoring equipment consider enactment and revision of estimating cost of construction measurement, consider ratio of monitoring equipment loss for developing construction monitoring and monitoring industry are proposed.

Evaluation of the Representativeness of Air Quality Monitoring Network in Seoul through Actual Measurement (대기오염도 실측에 의한 대기오염 자동측정망의 대표성 평가)

  • Jeon, Eui-Chan
    • Journal of Environmental Impact Assessment
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    • v.5 no.1
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    • pp.79-85
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    • 1996
  • Simultaneous monitoring in many locations is necessary to evaluate the air quality and analyze future trend of a city, For this purpose, it is essential to install air pollution monitoring network. The first automatic air pollution monitoring network was introduced Seoul in 1973. As of 1995, 20 monitoring stations are now in operation. Concerning the management of the air pollution monitoring network, there was some argument among the relavant scholars, non-governmental organization(NGO) and the government organization. So far, there was no extensive evaluation and analysis about the network. The purpose of this study was to evaluate the representativeness of air quality monitoring network through actual measurement of the concentration of the air pollutant. The concentration of NOx was extensively measured widely in Seoul area three times using the TEA simple measuring technique. Even the judgement level for the area representativeness was lowered to 80%, Ssangmun-dong monitoring station tend to overestimate the pollutant concentration of the covered area. While, Sinlimdong monitoring station tend to underestimate the pollutant concentration of the covered area.

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A Study on Site Positions for Monitoring Efficiency Improvements of the Aircraft Noise Monitoring Stations (항공기소음 자동측정국 감시효율 향상을 위한 위치설정에 대한 연구)

  • Son, Jung-Gon;Jeong, Woo-Hong;Hwang, Min-Gee;Gwon, Hyun
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.19 no.1
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    • pp.50-55
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    • 2009
  • The monitoring efficiency of the aircraft noise monitoring stations is decided to the reference noise level and the infringement of each monitoring stations. We calcurates the monitoring efficiency of three noise monitoring station among twelve in the vicinity of Gimpo Int'l Airport. As a result, the monitoring efficiency shows that the noise monitoring stations No#3, No#5 and No#6 are 14.3%, 18.5% and 29.3% respectively, Among them No#6 staion looks higher efficiency than another two stations because of underneath the flight trackas.

A Study on Monitoring Efficiency of the Aircraft Noise Monitoring Stations (항공기소음 자동측정국 감시효율에 대한 연구)

  • Son, Jung-Gon;Jeong, Woo-Hong;Hwang, Min-Gee;Gwon, Hyun
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • pp.423-428
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    • 2008
  • The monitoring efficiency of the aircraft noise monitoring stations is decided to the reference noise level and the infringement of each monitoring stations. We are calculate the monitoring efficiency of three noise monitoring stations among twelve in the vicinity of Gimpo Int'l Airport. As a result, the monitoring efficiency shows that the noise monitoring stations #3,#5 and #6 are 14.3%, 18.5% and 29.3% respectively, #6 which is underneath the flight track is higher efficiency than another two stations.

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